/*
 * This file is part of the UCB release of Plan 9. It is subject to the license
 * terms in the LICENSE file found in the top-level directory of this
 * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
 * part of the UCB release of Plan 9, including this file, may be copied,
 * modified, propagated, or distributed except according to the terms contained
 * in the LICENSE file.
 */
/* Portions of this file are Copyright (C) 2015-2018 Giacomo Tesio <giacomo@tesio.it>
 * See /doc/license/gpl-2.0.txt for details about the licensing.
 */
/* Portions of this file are Copyright (C) 9front's team.
 * See /doc/license/9front-mit for details about the licensing.
 * See http://git.9front.org/plan9front/plan9front/HEAD/info.html for a list of authors.
 */
#include <u.h>
#include <lib9.h>
#include <bio.h>
#include <authsrv.h>
#include "authcmdlib.h"

int
readarg(int fd, char *arg, int len)
{
	char buf[1];
	int i;

	i = 0;
	memset(arg, 0, len);
	while(jehanne_read(fd, buf, 1) == 1){
		if(i < len - 1)
			arg[i++] = *buf;
		if(*buf == '\0'){
			arg[i] = '\0';
			return 0;
		}
	}
	return -1;
}